Capacitor discharge ignition testing apparatus employing visual spark gap indicator

  • US 3,979,664 A
  • Filed: 03/03/1975
  • Issued: 09/07/1976
  • Est. Priority Date: 03/29/1973
  • Status: Expired due to Term
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First Claim
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1. A spark gap unit for an ignition testing apparatus providing on site testing of capacitor discharge ignition systems for internal combustion engines comprising a pair of spark gap electrodes mounted in spaced relation and having input power connection means, an enclosing housing enclosing the ends of the electrodes and the gap therebetween, said housing providing an essentially fluid tight enclosure, said housing including a small passageway means permitting a restricted fluid interchange between the inside and outside of the housing and restricting the propagation of a spark from between the electrodes outwardly of the housing while permitting the escape of gases from within the housing.

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